Heel-attaching machine



,July 14, 1925.

J. F. STANDISH HEEL ATTACHING MACHINE Filed July 1v, 1920 s sheets-sheet 1 /A/fvfA/TUAY July 14, 1925. 1,545,575

J. F. STANDISH HEEL ATTACHING MACHINE Filed July 17, 1920 5 sheets-sheet '2 l 1Z0 3g 52 54 l 184 LL-wf July 14, 1925.

J. F. STANDISH HEEL ATTACHLNG MACHINE 3 Sheets-Sheet 3 /ANE/VTUAZ Filed July 17, 1920 Patented July 14, 1925. I

UNITED STATES PATENT OFFICE.

JOHN F. S'IANDISH,l 0F WINTHROP, HASSACHUSETTS, ASSIGNOB TO UNITED SHOE IACHINERY CORPORATION, F PATTERSON, 4NEW JERSEY, A CORPORATION OE NEW HEEL-.LTTHCH'ING MACHINE.

JERSEY.

applicati@ med my 17,'

To all whom it may concern:

Be it known that I, JOHN F. STANnIsH, a citizen of the UnitedStates, residing at Winthrop, in the count v-`ofv Suffolk and State'or` Massachusetts, ave inventedf certain Improvements in f Heel-Attaching Machines, of'which' the following' description,

oped, reference being had to the accompany- `ing drawings, in whichters on the drawings indicating like parts in in connectiotwith the accom anying draw- -ing`s, is 'a spec1'icat1on,'l1ke re erence characthe several, ligures.` f. My'inventionrelates to machines for securing 'heels to shoes, it :being especiallyfrom the' right in Fig. 1;

adapted for 'inside nailing as' comlnonly practised in connection with' the attachment of Wood heels. The in'vention is' illustrated -as embodied in a machine of the ^type dis- .1

closed in Patent No. 1,269,654,ssued inmy name on June 18, 1918, although in various -aspects the inventionis'not limited to` em .bodimentin machines of this 'type or to use -in machines for securing heels.-v

It is an object of this invention to provide -novel means for establishing preliminary -contact of a pressure device-with a heel po- ,of the top and bottom guide-retaining plates sitioned upon'the shoe-to which it is to be `attached, then applying a clamping pressure which will be independent' of the height of the heel, and preferably gradually increasing the pressure while the heel is being attached, to better maintain the close relation between the heel-seat and the end of the heel. Upon the release of the pressure, the movement ofthe parts may be cushioned, the cushioning means also, if desired, furment.

Another object of the invention is to imn vtoggle connectlons for the actuating clutch;

prove the arrangement of the nail drivers and their guiding means. With these objects in View, the drivers are mounted in holders carrying different numbers of such drivers, which may be selectively used according to the requirements ofthe Work in hand; the drivers are given freedom of movement by being permitted to slide and rock upon their carrier; and the .driver guides exercise control over each: other in their movement of adjustment.

A further object of theinvention is .to produce effective engagement of the pressure device with the heel which is being attached. For this purpose I may employ a flexible heel-engaging member, mounted Amounted `-within it nail-drivers '2.6.

,and operated by a connecting rod 32, which 1920. aerial N0. 397,033.

uponsupports connectedl to move together. In thls way pressure a ainst one of the su ports will cause theot ersto move with 1t,- 'and the flexlble member, if this is empio ed, to wrap itself about the heel to hold it lirmly. i

Other objects will hereinafter 'be devel- Fig. lisa 4front elevation of' one embodiment of my improved heel-'attaching' machine;

Fig. 2 isfa side elevation thereof, looking Fig. 3 is a partial vertical section, viewed from the opposite direction;

Fig. 4 is an enlarged vertical, sectional detail through the jack-post;

Fig. 5 is a top plan view of the jack-post; Fig. 6` is a horizontal section on the line 6-6 of Fig. 4. y i

Figs. 7 8 and 9 are vertical, sectional de- .tails on the lines 7 7, 8--8 and 9 9 of Figs. 5, 6 and 5, respectively;

Figs. 10 and 11 are'details in perspective of the jack-post; l Fig. 12 is a longitudinal, sectional detai `through the heel-fork;

Fig. 13 is a transverse section therethrough on the line 13-13 of Fig. 12;

Fig. 14 is a vertical, sectional detail through the cushioning device;

Fig. 15 is a detail in perspective of the clutch-actuating cam;

Fig. -16 is an enlarged horizontal section on the line 16-16 of Fig. 3;

Fig. 17 illustrates, in side elevation, the

Fig. 18 is a transverse section on the line 18-18 of Fig. 16; and

Fig. 19 is a detail in perspective of one of the pairs of toggle links.

Mounted upon a bracket 20 projecting horizontally from a frame 22 is a jack-post or work-support 24, which, in the type of machine arranged for inside nailing, has

Arranged to reciprocate within the jack-post is a plunger 28 guided at 30 in the frame is joined to the pin of a crank-disk 34 fast upon one extremity of a power-shaft 36 j ournaled in the lower portion of the frame.

is arrange a single rotation clutch 38, one portion of which is driven by a pulley 40 belted to some suitable source of power.

Secured u on the top of the plunger 28 is a carrier ead 42 having mounted upon it driver holders 43, 44 and 45. Into these holders the drivers 26 are threaded, being fixed in place by set-screws 46. To provide for a lateral movement of adjustment of the drivers, their holders are mounted to slide upon the carrier, and since this adjustment is effected from points near the upper extremities of the drivers separated from the holders, to prevent the latter from cramping in the ways they are also arranged to rock. For this purpose each holder has a cylindrical, horizontally extending end portion 48 movable in ways between the top ofthe carrier and guide-plates 5() bolted thereto and overhanging the ends 48. It will be seen that these cylindrical portions can not only move bodily in their ways, but can also rock or turn about their axes and thus adapt themselves to changes in the angles of the drivers. They are entirely free from sharp edges, which might tend to bind upon the walls of the ways. The upper extremities of the drivers move in guidetubes 51, 52 and 53, these respectively corresponding to the holders 43, 44 and 45. Tubes 52, 53 are provided with lateral flanges 54 mounted to slide in Ways 56 formed in an upper plate 58 secured to the top of the jack-post, with an interposed bottom plate 60. The upper ends of the tubes extend beyond the plate 58 at 61, and here serve to support the shoe to which a heel is to be applied. Within the tubes the securing nails are held for the attaching operation upon the ends of the drivers. The plates 58 and 60 have vertically alined slots 62, 62, oppositely inclined at opposite sides of the plates, these slots being for the purpose of receiving the tubes 52, while at the rear ends of the plates, extendin along their axes, is a slot 64, in which is held the tube 53. The tubes 51, which receive the drivers carried by the holder 43, are shown as three in number lying in a line parallel to the breast of a heel operated on, being furnished by parallel bores; in a single block, the holder being similarly arranged. The guide 51 has a plate or flange 66 overlyin the top of the plate 58 and having slots 6 oppositely inclined to the slots 62 in the plates 58 and 60. That is, these slots 67 respectively intersect the .slots 62, and are separated from them, considered horizontally, by angles of 90 degrees. At the front of the guide 51 is a horizontal boss 68,

threaded to receive a screw mounted to turn in a plate 72 secured upon the front of the j ack-post. Upon turning this screw, thel guide 51 will be moved either inwardly or outwardly, and its slots 67 will exert a cam action upon the guides 52, causing them to be moved similarly in their slots 62. For example, if the guide 51 is shifted outwardly to increase the distance between the points at which the nails are to be driven, the guides 52 will have a similar movement. For nailin heels of small transverse dimensions, in w ich it is desired to have the securing means close together, the driver in the central bore only of the guide 51 may be employed in connection with the drivers of guides 52, 52 and 53. The nails will tlus lie at the apices of a rhombus. For attaching a larger heel, when the holders 51 and 52 are moved outwardly away from one another, the outer bores of the firstmentioned holder may be utilized, the points of attachment then being at the apices of a pentagon. It is to be noted that in either the contracted or expanded nailing, the bores of the guide 51 will be in their travel maintained in symmetrical relation to the side guldes 52. The guide 53, which is at the rear of the heel and with which there is occasion for less frequent adjustment, is clamped between the plates 58 and 60 by screws 74 passing through the plates into the top of the j ack-post. These screws also hold 1n position an adjustable back-gage 76, which contacts with the rear of the interior counter portion of a shoe, and has a horizontal flange 78 lying between the plate 60 and the jack-post. This flange is slotted at 80 to embrace the screws 74, and, upon loosening these screws, may be shifted in its relation to the body of the jack-post to vary the position of the nailin as a whole to the heel which is to be attac ed. In the adjustments which have been describel, and which are effected by movements of the guides, the driver holders follow the travel of the guides freely and without binding by virtue of the combined sliding and rocking of the cylindrical portions 50 of the holders in their ways.

To hold the work firmly upon the support with a heel clamped in position upon the shoe to which it is to be attached, an abutment or pressure-device is mounted upon a head 82 vertically movable in ways 83 in the upper portion of the frame and including a support-ing slide 84 movable horizontally in the head, this slide having a pressure member 86 for contact with the tread surface of the heel, and a fork 88 arranged to co-operate with the rear of the heel. The mounting, interconnection and adjustment of the elements 86 and 88 may be as disclosed in the patent previously referred to. The fork 88 has a carrier member 90 formed with a shank 92 fixed in the slide. Mounted upon the carrier are three supporting members-a central support 94 arranged to slide upon the carrier, and opposite sidemembers 96, v96 lpivoted, at 98 on said carrier. At opposite sides of the central member are formed rack-teeth 100, with which mesh teeth of segmental gears 101 upon the side members, causing all these elements to move together. The central member is held in its extreme forward position, with the side members forced back under its influence, by a spring 102 seated in a socket in the member 94, and bearing against a wall of the carrier. The other end of the socket receives a friction-stud 104 projecting from the rear central portion of a iexlble band 106. This band, to give it the proper body and stability in its bearing upon the work, may be made up of a plurality of thicknesses of some such material as eathenV Extending lon itudinally of the outer extremities of tie side members 96, 96 are ways 108, in which slide the vheads of studs 110 fixed in the band 106 near its outer ends. Under the infiuence of the spring 102 the supports cause the band to assume a rather flat curve, or one of large radius, as is best illustrated in Fig. 12 of the drawings, this being of such a contour as to readily receive the largest heelwhich is to be operated on. As the pressure device is vbrought into contact with 'the heel, the central member 94 yields under the pressure, and in traveling rearwardly causes the side members 96 to move toward one another, thus wrapping the band about the heel to give perfect contact throughout the entire length of the band, the heads of the studs 110 traveling in their slots during this movement of selfadjustment. The heel is thus very perfectly held against rearward displace-ment under the clamping pressure and by means which has no ,tendency to deface it, nor to bring ununiforml distributed stresses which will tend to spllt it. Because of the manner in which the band is attached to the supports by its studs, itmay easily be removed and renewed. l

The head b82 is held normally raised, to free the jack-post for the application of the work, by flexible means, which may consist of a pair of wire ropes 112 attached to the head at opposite sides and passing over and being fixed to circumferential surfaces 114 formed uponwheels 116 journaled at the top of the frame. At the portions of the wheels of maximum diameter, this being considerably greater than the surfaces 114 and thus increasing the leverage, are surfaces 118, about a portion of which pass and are secured two liexible members 120, which, upon leaving the surfaces 118, travel over guide-pulleys 122 mounted for rotation at the rear of the upper portion of the frame, and then enter the ends of tubular casings 124 extending in an approximately vertical direction along the frame.

Within the casings and protected thereby, the members 120 are attached to sprin or motor members 126, the opposite encss of which sprm sare fixed at 128 to the frame. To move t e pressure device toward the heel u n which it is to bear, both operatorcontro led and wer-actuated `are provided. Gui ed in verticalslots' 130 ormed in the frame at the lower rear portlon, is a. treadle 132 having a oati'ng fulcrum, furnished by a link 134 depending from a lever 136 arranged to turn near the central rear portion of the frame. The opposite or forward extremity of the lever 136 is forced up to hold the floating fulcru1 n of the treadle in a normally lowered positlon, by a spring 138 interposed between a bracket projecting from the frame and the end of a screw 140 threaded vertically through the forward extremity of the lever 136. By changing thel posltion of this screw, the tension of the spring 138 may be varied, and therefore the resistance which it exerts to the upward displacement of the fulcrum of the treadle. Articulated near the central portion of the treadle is a link 142, adjustable in length by a turnbuckle 144,v and joined at its u per extremlty to a. lever 146 fulcrume in the frame arid having at its inner end av gearsegment 148. With this segment meshes a like segment 150, formed upon a lever 152 fulcrumed upon the frame adacent to the lever 146 and joined by a lin 154 to the head 82. When the treadle is depreed b the operator, the spring y138 is at rst su cient to prevent movement of thev floating fulc-rum of the treadle, so that the latter turnsV about this as a fixed point, lowerin the link 142. This, throu h the geared levers 146 and 152, likewise lowers the head 82, bringin the tread pressure member 86 and the for `88 against the heel which they are to hold. The contact with the heel arrests the movement of the link.142, which in its turn acts as a fulcrum, and as pressure is continued by the operator upon the treadle, the link 134 is raised, lowering the forward end of the lever 136. To this lever, between its fulcrum point and the spring 138, is pivoted a rod 156, having secured near its lower extremity a contact member 158 movable against the horizontal arm of a bell-crank lever 160, which is held normally raised by a spring 161 to hold the clutch 38 against operation. As the rod 156 is lowered, the action of the contact member upon the lever 160 withdraws it from cooperation with the clutch, permitting this to become engaged to rotate the shaft `36 from the pulley 40. Upon the end of the rod 156 is a pin 162, movable in a slot 164 in an arm 166 turning upon a rod 168 extending transversely of the lower portion of the frame. A spring 170 resists the movement of the pin in the slot. This pin, slot and arm connection so guides the lower end of the link 156 in its downward travel that it is also moved outwardly .away from the clutch lever 160. This causes the contact Amember 158, after it has tripped the clutch, to become'disengaged from the lever and release it, permitting its restoration by the spring 161 to. its normal position, in which it stops the action of the clutch at the end of a single rotation. A constantlyacting friction'brake 171 aids in stopping the shaft 36.

Fast upon the shaft 36 is a cam-disk 172, with the rear face of which contacts a roll 174 rotatable upon the vertically extending arm of a bell-crank lever 17 6 fulcrumed upon the frame. The other arm of this lever is connected by a link 178, through an eye 180 at its upper end, with central pivot bosses 182 projecting adjacent to each other upon the sides of a double toggle lever 184, 184. The opposite ends of this lever bear against blocks 186 and 188 arranged to slide in an arm 190 extending rearwardly 'in a horizontal direction from `the lower portion of the head 82. The outer block 186 contacts with an adjusting screw 192 threaded through the.

outer end of the arm 190, while the compnnion block 188 rests against the outer of a set of vertical clutch-plates 193 depending from the head 82. Interleaved with v the plates 193 is another set of plates 194 rising vertically from a slide or actuator 196 movable in vertical ways 198 in the head. The slide 196 is joined by an eccentric rod 200 with an eccentric 202 mounted near the center of the shaft 36. A spring 204, joining the rod 17 8 with the slide 196, holds said rod in a normal raised position, so that the toggle-lever is broken and the plates 193 and 194 are free from clutching pressure. When the rotation of the shaft 36 begins, an inclined cam-surface 206 upon the disk 172 travels in contact with the roll 174. This lowers the link 178 to straighten the toggle 184, forcin the block 188 against the clutch-plates an causing theirengagement. The force of this engagement may be varied, by altering the posit-ion of the screw 192 to shorten or lengthen the normal distance between the connections of the toggle-lever to the blocks 186 and 188. As long as the clutch is maintained in action by the contact of the roll 174 with the vertical rear face of the disk '172, the slide 196 and head 82 are moved together under the influence of the eccentric 202, causing the pressure device 86, 88 to force the heel ainst the shoe to which it is to be attached y an amount which, on account of the preliminary pressure on the setting device by the treadle, is independent of the hei ht of the heel operated on. The relation o the eccentric 202 and the crank-disk 34 is such that this clamping pressure' con- -turn shoes, w

continued tinues during the nailing operation. This is of especial utility in maintaining the work in contact with the ends 61 of the guide-tubes as the nails are forced into the work. Sometimes there is, at the oints at which the nails enter, a considerab e thickness of yieldable material this being especially true of hich is forced away by the entering nails, causing these to become deflected and to enter the heel impro erly. This is prevented by exerting upon t e work the pressure as the nails are driven, the inside of the shoe being constantly held in contact with the guide-tubes. The nailing operation havin been completed, the surface of the disk 1 2 passes from the roll 174 at a point 207,3 releasingl the bell-crank lever 176 and allowing the link 178 to be raised by its spring tofree the clutch. The head 82 is thereupon raised to the initial position, to which it is moved by the springs 126, the tension of these springs being multiplied by the leverage afforded by the wheel.

surfaces 114 and 118 of different diameters. The extent of the pressure which is applied by the members 86 and 88 may be varied by an adjustment of the eccentric 202. This eccentric is in the form of a collar arranged to slide longitudinally of the shaft upon an inclined portion 208 between the disk 172 and an opposite disk 210. The eccentric collar is held in position upon the inclined portion and moved thereon to the desired point by a screw 201 mounted to turn in the disks and being threaded through the collar. The width of the eccentric strap upon the rod 200, or its dimension longitudinally of the shaft 36, is equal to the distance between the disks 172 and 210, so that, wherever the eccentric may be adjusted, it will still be within the strap. The dimensions of the inclined portion of the shaft and of the collar are such that the eccentricity may be varied to the extent necessari7 for the proper application of pressure.

The momentum of the head 82, after it has been releasedby the clutch-plates 193 and 194, is preferably absorbed by a dashpot device' employing in the present 'instance air as a cushioning medium, although obviously some other fluid'might be utilized. This may consist of a cylinder 212, formed vertically in the head and positioned to move over, in the ascent of the head, a piston 214 entering the cylinder and having its rod 215 threaded through a bracket 216 at the top of the frame, the rod being locked in position in the bracket by a cheek-nut 218. As the cylinder travels along the piston, which fits it closely, the air within the cylinder is expelled through a passage 220 in the piston having a contracted opening controlled by a valve 222. The iow of air through this valve may be so adjusted that the head is brought to rest, when the end of llO the cylinder contacts with the adjacent end of the piston, without undue shock. The point at which this positive arrest of movement occurs may be changed by raising or lowering the screw upon which the piston 214 is mounted, t-hus altering the vertical relation of its contact end. To prevent there being a resistance exerted to the downward movement of the head 82 by the dashpot device, there is formed throu h the piston a passage 224, the inner en of which communicates with a chamber 225 within the piston, which chamber is also connected to the passage 220. The communication between the passa e 224 and the chamber is controlled by a c eck-valve 226 opening upwardly. The suction exerted upon the check-valve in the downward movement of the head raises the former from its seat, providing for a free iow of air throughthe passages 224 and 220 and chamber 225 into the interior of the cylinder. Upon opposite movement of the cylinder, the valve 226 seats itself, closing the passage 224 and diverting all the air expelled through the i'ontiactcd and controlled opening of the passage 220.

ln using the machine, the operator places a shoe S to be heeled upon the jack-post, resting the innersole through which the attaching nails are to be driven upon the ends 61 of the guide-tubes, with the rear of the counter portion against the gage 76. Prior to this, the guide-tubes and the gage will have been adjusted to bring the nailing points at the desired position for the particular size of heel being operated upon and nails supplied to the tubes 52 and 53, and those of the tubes 51 which are to be utilized for the particular work in hand. Now depressing tlie treadle 132, the operator, through the link connection 142, brings the pressure member 86 against the tread-surface of the heel H, which he has placed upon the jacked shoe, and the fork 88 against the rear of said heel, the pressure upon the central member 94 of the fork causing the side members 96 to wrap the band106 uniformly about the heel.. Continued pressure upon the trcadle trips the clutch 88 through the rod 156, starting the power operation of the machine. First, the cam-disk 172, through the toggle-lever 184, locks the clutch-plates 193 and 194, causing the eccentric 202 to move the head with the pressure devices against a heel to clamp it positively upon the shoe. During the application of this pressure by the eccentric, the crank-disk 34 raises the drivers 26 through their guidetubes to force the nails contained therein through the sole of the shoe into the heel. The cam-disk 172 thereupon frees the clutch 193, 194, releasing the head 82, which withdraws the contact-device from the heel under the influence of the springs 126, the

shock of the head in risin being taken u by the dash-pot device. en the end o the cylinder 212 contacts with the end of the piston, the upward movement of the head is positively arrested, and the machine is restored to its normal condition, ready for another operation.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, a movable carrier for the ressure member, connections to the carrier or moving it, an actuator for the carrier, means for moving the actuator, means for connecting the actuator and carrier, and means for rendering the connectin means active and for maintaining such action and causing movement of the pressure member during the movement 'of the driving member.

2. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, a movable carrier for the ressure member, connections to the carrier or moving it, an actuator for the carrier, power means for moving the actuator, means for connecting the actuator and carrier, and means effective in the operation of the machine for rendering the connecting means active and for maintaining such action and causing movement of the pressure member during the movement of the driving member.

3. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, a movable carrier for the pressure member, connections to the carrier for moving it, an actuator for the carri'er, power means for moving the actuator, co-operating friction members fixed to the carrier and actuator, and means for forcing the friction members into engagement.

4. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, a slidable carrier for the pressure member, an actuator mounted to slide in the carrier, means for moving the actuator, and means for connecting the actuator and carrier.

5. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, a slidable carrier for the pressure member, an actuator for the carrier, means for moving the actuator, friction-plates fixed to the actuator and carrier, and means for forcing the plates into engagement.

6. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, a slidable 'carrier for the pressure member, an actuator for the carrier, means for moving the actuator, friction-plates fixed to the actuator and carrier, means for forcing the plates into engagement, and means arranged to vary the force of engagement of the plates.

7. In a heel-attaching machine, a frame, a nail-driving member movable therein, ahead arranged to slide inthe frame opposite the driving member, a slide movable m the head, a power-shaft connected to the slide, cooperating friction-plates fixed to the slide and head, a toggle mounted upon the head and (zo-operating with the plates, and connections to the power-shaft to actuate the toggle.

8. In a heel-attaching machine, a frame, nail-driving member movable therein, a head arranged to slide in the frame opposite the driving member, a slide movable in the head, a power-shaft connected to the slide, cooperating friction-plates fixed to the slide and head, a toggle mounted upon the head and co-operating with the plates at one extremity, means arranged to vary the position of the opposite extremity of the toggle, and connections to the power-shaft to actuate the toggle.

9. In a heel-attaching machine, a movable nail-driving member, an opposite movable pressure member, a power-shaft, operating means for the member carried by the powershaft, said operating means being variable in position upon the shaft to alter the action of the member operated, and means arranged for control by the operator to eiect such variation.

l0. In a heel-attaching machine, a movable nail-driving member, an opposite movable pressure member, a power-shaft having an inclined section, an eccentric surrounding said section, means arrangedto movethe eccentric to different positions along the section, and connections between the eccentric and one of the movable members.

11. In a heel-attaching machine, a frame, a nail-driving member' movable therein, a head arranged to slide in the frame opposite the driving member, a slide movable in the head, a power-shaft having an inclined section, an eccentric surrounding said section, means arranged to move the eccentric to different positions along the section, connections betweenthe eccentric and slide, friction-plates ixed to the slide and head, a toggle mounted upon the head and co-opera-ting with the plates, and connections to the power-shaft to actuate the toggle.

12. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, an operating shaft for the machine, a clutch controlling the application of power to the shaft, a treadle, a plurality of links upon which the treadle is hung, and connections from one of the links to the pressure member and from another link to the clutch.

13. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, an operating shaft for the machine, a. clutch controlling the application of power to the shaft, a treadle, a plurality of links upon which the treadle 1s hung, connections from one of the links to the pressure member, a lever to which another link is connected, connections from the lever to the clutch, and yieldable means for resisting the movement of the level'. A

14. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, an operating shaft for the machine, a clutch controlling the application of power to the shaft, a treadle, a plurai'gty of links upon which the treadle is hung, cnnections from one of the links to the p'iessure member and from another link to the clutch, means for resisting the movement of one of the links, and means arranged to vary the force of such resistance.

15. In a heel-attaching machine, a movable nail-driving member, an opposite pressure member, an operating shaft for the machine, a clutch controlling the application of power to the shaft, a treadle, a plurality of links upon which the treadle is hung, connections from one of the links to the pressure member, a level to which another link is connected, connections from the lever to the clutch, a spring for resisting the movement of the lever, and means arranged to vary he tension of the spring. C;

16. In a heel-attaching machine, a frame, a nail-driving member movable therein; a head arranged to slide in the frame opposite the driving member, a wheel rotatable upon the frame, a motor member, a flexible member connecting the wheel and head, anda flexible member connecting the wheel and motor member. A

1T. In a heel-attaching machine, a frame, a. nail-driving member movable therein, a head arranged to slide in the frame opposite the driving member, a wheel rotatable upon the frame and having portions of different diameter, a motor member, a flexible member connecting one portion of the wheel and the head, and a flexible member connecting a portion of the wheel of greater diameter and the motor member.

18. In a heel-attaching machine, a frame, a nail-driving member movable therein, a head arranged to slide in the frame opposite the driving member, a wheel rotatable v upon the frame, a casing, a spring situated in the casing and being secured to the frame, and flexible connections for the head, wheel and spring joined to said spring Within the casing.

19. In a heel-attaching machine, a frame, a jack-post mounted thereon, drivers movable in the jack-post, a head movable upon the frame and having a tread pressure member co-operating with the jack-post, a spring co-operating with the head and frame and exerting 'its force to move the pressure member from the jack-post, and co-operating dash-pot elements carried by the head and frame.

20. In a heel-attaching mach1ne,a frame, a work-support mounted thereon, a head movable upon the frame and having a pressure member co-operating with the support, a spring co-operating with the head and frame and exerting its force to move the pressure member from the support, and co-operating dash-pot elements carried by the head and frame and contacting to limit the movement of the head, the frame-element of the dashpot being movable toward and from the head-element and arranged to contact therewith to variably limit its movement.

21. In a heel-attaching machine, a frame, a work-support mounted thereon, a head movable upon the frame and having a pressure member co-operating with the support, a spring co-operatinfr with the head and frame and exerting its force to move the pressure member from the support, a cylinder carried by the head, and a piston variable in sition upon the frame and operating in tie cylinder.

22. In a heebattaching machine, a Workabutment, a carrier member movable toward and from the abutment, driver-holders movable upon the carrier member, said driverholders being arranged to hold different numbers of drivers, and means arranged to adjust said driver-holders simultaneously.

23. In a heel-attaching machine, a Workabutment, a carrier member movable toward and from the abutment, and driver-holders movable upon the carrier member, there being separate holders corresponding to the breast, the sides and the rear ofa heel, that at the breast being arranged to hold a plurality of drivers.

24. In a heel-attaching machine, a Workabutment, a carrier member movable toward and `trom the abutment, and driver-holders movable upon the carrier member, there being separate holders corresponding to the breast, the sides and the rear of a heel, that at the breast being arranged to hold a plurality of drivers in a line arallel to said breast and the remainder being arranged to receive individual drivers.

25. In a heel-attaching machine, a Workabutment, a carrier movable toward and `trom the abutment, drivers arranged to slide and rock upon the carrier, guides for the drivers, and means connecting said guides and arranged to move them toward and from one another.

26. In a heel-attaching machine, a Workabutment, a carrier movable toward and from the abutment, drivers arranged to slide and rock upon the carrier, and operator-controlled means for moving the drivers toward and from one another.

27. In a heel-attaching machine, a workabutment, a carrier member movable toward and from the abutment, a driverholder having a cylindrical portion movable in contact with the carrier member, and o erator-controlled means for causing tiie travel of the cylindrical portion along the carrier member.

28. In a heel-attachin machine a workabutment, a carrier mem r movable toward and from the abutment, a driver-holder movable upon the carrier member, a driver mounted to slide and rock with the holder, a guide-tube for the driver mounted to slide laterally, and means arranged to move the guide-tube bodily upon its mounting.'

29. In a heel-attaching machine, a workabutment, a carrier member movable toward and' from the abutment, drivers movable upon the carrier member, guides for the drivers, said uides being arranged to move respectively 1n different directions, and means connected to one of the guides for moving it, said guide ,having provision for moving another guide.

30. In a heelattaching machine, a Work# abutment, a carrier member movable toward and from the abutment, drivers movable upcn the carrier member, guides for the drivers, and means connected to one of the guides for moving it, said guide having a cam-surface co-operating with another guide.

3l. In a heel-attaching machine, a Workabutment, a carrier member movable toward and from the abutment, driver-holders movable upon the carrier member, there being separate holders corresponding to the breast, the sides and the rear of a heel, driver-guides corresponding to the holders, and means arranged to move the breast driver-guide, said breast driver-guide havm ing provision for moving the side guidesu 32u In a heel-attaching machine, a jackpost, a plunger operating therein, drivers movable upon the plunger, plate carried by the jack-post and having a slot, a driver guide movable in the slot, and a driverguide movable upon the plate and having a slot cooperating With the guide situated in the plate slot.

33. In a heel-attaching machine. a jackpest, a plunger operating therein, drivertI movable upon the plunger, plate carried by the jaclnpost and having elet, a drii erL guide movable in tbe slet, a driver-guide movable upon the plate and having a slot co-operating with the guide situated in the plate slot, and a screw mounted upon the jacl-post and engaging the slotted driver gul e.

34.- In a heel-attaching machine, a Workabutment and a carrier member relatively movable toward and from one another, drivn ers movable upon the carrier member, guide means associated with one of the drlvers, and means engaging the guiding means for moving it and the corresponding driver latterally, said guide means having provision for moving another driver.

35. In a heel-attaching machine, a jackpost, a plunger operating therein, drivers movable upon the lunger, a driver-guide movable upon the jaclepost, means for securing the guide in position, and a gage mounted upon the jack-post and fixed in position by the guidefsecuring means.

36. In a heel-attachingmachine, a jackpost, a plunger operating therein, drivers movable upon the plunger, a plate carried by the jack-post, a guide Jfor a driver movable upon the plate, and a gage held between the plate and jack-post.

37. In a heel-attaching machine, a jackpost, a plunger operating. therein, driversl movable upon the plunger, a plate carried by the jack-post, a guide for a driver movable upon the plate, a gage held between the plate and jack-post, and means for securing theplate to the jack-post, said plate being arranged to hold the guide and gage against movement.

38. The combination with a jack post, of a flexible engaging member arranged to clamp a heel upon a jacked shoe, .movable supports for the engaging member, and means for connecting the supports to cause them to move together.

39. The combination with a jack post, of a flexible engagingl member arranged to clamp a heel upon a jacket shoe, movable supports for the engaging member, and gearing connecting the supports.

40. In a pressure device for heels, a jaclpost, movable members arranged to co-operate with the rear and opposite sides of a heel to clamp it upon a jacked shoe, means for independently mounting the members, and connections for transmitting the movement of one member to the others.

4l. In a pressure device for heels, a jackpost, separated pivoted contact members arranged to co-operate with the opposite sides of a heel and provided with teeth, an intermediate sliding contact member arranged to co-operate with the rear of the heel and having opposite teeth engaging those of the pivoted members, said members acting'by their co-operation with a heel to clamp it upon a jacked shoe.

42. In a pressure device or heels, a jackpost, separated pivoted contact members arranged to co-operate with the opposite sides of a heel and provided with teeth, an intermediate sliding Contact member arranged to co-operate with the rear of the heel and having opposite teeth en aging those of the pivoted members, and a exible band mounted upon the contact members for engagement with the heel to clamp it upon a jacked shoe.

'43. In a pressure device for heels, a plu- 65 rality of movable supporting members, and a heel-engaging member mounted upon the supporting members, the engaging member being fixed against movement upon one of the` supporting members and there being connections between the engaging member and another supporting member to transmit relative. movement.

44. In a pressure device for heels, a plurality of movable supporting members, a heel-engaging member mounted upon the supporting members, the engaging member being iixed against movement upon one of the supporting members and there being connections between the engaging member and another supporting member to transmit relative movement, and connections between the supporting members to cause them to move together.

45. In a pressure device for heels, movable rear and opposite side supporting members, a flexible heel-engaging member,

a friction-stud connection between the engaging member and the rear supporting member,l and sliding stud connections between the engaging member and side supporting members.

46. In a pressure device for heels, a shoesupport, a strap of yieldable material arranged to embrace the rear surface of a heel on a supported shoe, and means to apply pressure to the strapat spaced points on opposite sides .of the median line of the heel, and in a direction to force'such heel against the heel-seat of a shoe on the support.

47. In a pressure device for heels, a shoesupport, and a head arranged to clamp a heelagainst a supported shoe, said head comprising a tread-engaging member and a strap for contact with Vthe rear surface of the heel.

48. In a pressure device for heels, a shoesupport, and a head arranged v*to clamp a heel against a supported shoe, said head comprising a tread-engaging member and a pressure member arranged to conform, by virtue of its bodily movement, to the rear surface of the heel.

In testimony whereof I have signed my name to this specification.

JOHN F. sTANDIsH. 

